Title : Reports of Higher Schools, Radio Engineering and Electronics (Selected Articles).

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Report Date : 08 NOV 1960

Pagination or Media Count : 23

Abstract : The possible causes of the disparity between the experimental values of thermionic constant A and its theoretical value are discussed for different types of cathodes. The relation of the work function to temperature, found by the method of shift of characteristic curve and conditioned by the change of level of the electrochemical potential, satisfactorily explains the anomalous values of A in the case of semiconductor cathodes. The method of impulse measurements of the emission of an oxide-coated cathode in gas rectifiers and thyratrons, destined for work under interrupted conditions, is described. The method was checked on industrial thyratrons and on experimental lamps be means of a comparison of the emission of the cathode during the combustion of discharge with its emission in a vacuum. (Author)